<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <meta charset="utf-8">
    <title>Title</title>
</head>
<body>
  form 文件夹下的 login.jsp 页面
  <br>
  <a href="${pageContext.request.contextPath}/hello">hello Servlet</a>
</body>
</html>
